Virtualization is a process, not a destination. If it were a destination, would it be called vNerd Island? vGeek Paradise?

This is my first blog in a new technology area that I’ve been very involved with over the past year. I’ve worked my way into the promised land of virtualization in the process of achieving the VMware Certified Professional (VCP) and...

CCVP Cisco Certification UPDATED to CCNP Voice

Cisco has announced considerable changes related to various professional level certification programs today. The Cisco Certified Voice Professional (CCVP) has been renamed to CCNP Voice. The CCIP certification has been renamed to...

911 is a Joke -Part 2

Here’s a summary of the technology involved in the 911 call routing on the PSTN (public switched telephone network): 1) Call is placed to 911 2) Service provider identified 911 call and routes call to “Selective Router” 3)...

911 is a JOKE!

This blog is dedicated to the Memory of Susan Meade. May she Rest in Peace. Susan was a beautiful woman who touched many around her. She will be missed. This is part 1 of a multi-part blog roll that will investigate the 911...

Extension Mobility Cross Cluster (EMCC)

Cisco Unified Communications Manger (CUCM) 8.0 introduces a new feature that many distributed multi-cluster call processing deployments have been waiting for…. extension mobility across clusters. And what technology feature would...

Cisco UC 8: Service Advertisement Framework and Call Control Discovery

One of the biggest cosmetic changes in the Cisco Unified Communication Manager Administration webpage (/ccmadmin) is the removal of the voicemail menu. An “Advanced Features” menu now appears where the voicemail menu used to...

Internetwork Performance Monitor Vulnerability

Cisco announced a vulnerability on Internetwork Performance Monitor (IPM) today at the following URL: http://www.cisco.com/warp/public/707/cisco-sa-20100120-ipm.shtml Internetwork Performance Monitor (IPM) is an add-on for the...

Congratulations Alex Hannah: CCIE (voice) # 25853

I have had the good fortune of working very closely with Alex Hannah while Alex was a voice instructor at Global Knowledge. Alex is a hard worker and great person. Congratulations on your VOICE CCIE Alex! Alex Hannah - CCIE#...

E.164 and International Call Routing

This blog will discuss some uses of the E.164 plus (+) character that Cisco began to fully support in Cisco Unified Communications Manager (CUCM) 7.0. The + character appears on many GSM phones sold internationally, but cannot be...

Audio Codec Negotiation

Cisco routers acting as voice gateways perform an important job in Unified Communications (UC) deployments. Digital signal processors (DSP) in voice gateways translate voice over IP real-time protocol (RTP) media to time division...

Common Device Configuration

Cisco Unified Communications Manager (CUCM) 5.0 introduced the common device configuration elements which provide a pool of configuration elements that can be assigned to multiple devices. The functionality of the configurations is...

Message Monitor

Cisco Unity 5.0 introduced a live call screening feature called message monitor. The message monitor feature is not supported on Cisco Unity Connection (CUC) or Cisco Unity Express (CUE) at the time of this writing. The message...

Visual Voicemail

Visual Voicemail is a feature of Cisco Unity that allows voicemail users to see all of their voicemails on the Cisco IP Phone when the Messages button is selected from the phone. Visual voicemail requires Cisco Unified...

Cisco Unified Phone Designer

The Cisco Unified Phone Designer is a downloadable Cisco Unified Communications widget that I will discuss in this blog. The Cisco Unified Phone Designer is a graphical user interface (GUI) application that will allow end users...

Third Generation Packet Voice DSP Modules

Cisco’s second generation integrated services router (ISR G2) introduces new digital signal processors (DSP) with up to four times the capacity of the Packet Voice DSP Modules used in the 2800 and 3800 series ISR routers. The...

ISR G2 Service Performance Engine (SPE)

In this blog, we will take a look at the Services Performance Engine (SPE) supported on the Cisco 3900 series router. The SPE is a modular motherboard design that allows customers to upgrade their routers core functionality without...

New EtherSwitch service modules on ISR G2

This blog will discuss the Power over Ethernet (PoE) service modules (SM) supported in the second generation Cisco Integrated Services router (ISR G2). The original PoE EtherSwitch modules (ESW) on the 2800 and 3800 Integrated...

Survivable Remote Site Telephony

The Cisco IOS gateway class of service configuration is accomplished using corlist configurations in the gateway. This blog is a continuation of the last CORLIST blog. The incoming corlist (keyring) configuration to meet the...

Survivable Remote Site Telephony

In this blog, I will explain the Cisco IOS technique of applying class of service (CoS) restrictions. Previous blogs have covered calling search space (CSS) and partition configuration in Cisco Unified Communications Manager (CUCM)...

NEW Cisco Routers! ISR G2

Cisco announced the ISR G2 routers today (integrated services router - second generation). This blog interrupts the SRST blog series, but I will get back to that conversation very soon. Let's take a look at the ISR G2...

Load More